In the ongoing battle for better, faster Internet, some people are about to be disappointed. If you have DSL, chances are that your Internet speed is drastically different than advertised.

This means that a few DSL companies will soon be getting a letter from the FCC demanding why. Century Link, Frontier, Verizon and Windstream are on this list.

You can see the differences in the chart below. Click the picture for a larger image.

Despite claims to the contrary, it seems that DSL just can't compete with broadband and fiber. This trend shows that perhaps Netflix wasn't just being vindictive toward Verizon in their recent finger-pointing incident.

To their credit, the Verizon FiOS service was almost as fast as advertised, but the Verizon DSL services were woefully under par.